Parlor air-heating stove



L.' W. GOSNELL.

Fire Place.

Patented April 2, 1850.

' N. PETERS, PhokoUlhngr-mpher, Wmin cdn. n. a

,LEMUEL W. GOSNELL, OF BALTIMORE, MARYLAND.

PARLOR AIR-HEATING STOVE.

Specification of Letters Patent No. 7,239, dated April 2, 1850.

as follows, reference being had to the accompanvlng drawings of the same, making part 1 of this specification.

Figure 1, is a front elevation. Fig. 2, is a vertical transverse section on the line a: w of Fig. 1. Fig. 3, is a rear elevation. Fig. 4:, is a side elevation. section on the line Z, 26, of Fig. 2, or top view of the fire board. Fig. 6, is a horizon tal section on the line 0, O, of Fig. 4.

Similar letters in the several figures refer to corresponding parts. My recessed fire board A, and air heater is made of Russlan pollshed sheet iron, or

cast iron, ornamented and somewhat wider than the widest part of the fire place for smaller size than the fire place, so that when it is arranged in the fire place for which it is designed, a space B or reservoir for heated air will be left between the back and top of said recessed fire board and the ordinary cas- 1 ing of the fire place. Combined with this fire board I use a single cylinder furnace; or heater C, of the usual form and construc- 3 tion, placed in the recess of the fire board, having its smoke or gas pipe D, passing outward from the back of the drum C (or upper part of the cylinder) and through the back of the fire board and upward through a horizontal plate E, placed in the fine of the chimney. The cylindrical fire chamber 0 is surrounded by an ornamental, reticulated, or perforated, cast, or sheet iron, or other, cylinder, E, of greater diameter than the fire chamber, forming an annular space H, between the two for heated air; into which space, pure, atmospheric air is con ducted from a chamber L through an open ing R-the air being conveyed into said chamber by a tube Gr, leading from outside the building, or from the cellar, or other convenient place. The external cylinder F, may

be perforated, reticulated, or foliated, in its front to exhibit the redness of the fire cylinder in the most effectual manner and to let the heated air into the room. The use of the Fig. 5, is a horizontal external cylinder F will retain the air in contiguity with the furnace until it is sufiiciently heated, when it may either pass out through the perforations f into the recess of the. fire board, and thence in to the apartment; or pass upward through the openings (fitted with the dampers P) in the horizontal segment plate of .the fire board into the space B and thence into a pipe Q, or pipes,

passing through the chimney flue, or otherwise, to an apartment, or apartments, above, wherein the heated air is dischargedregu lated by a valve, or valves, or a register of the usual construction arranged at. the outlet, or in any convenient place.

This combined fire board and heater will act by radiation and reflection, as well as by direct contact of the air with the cylinder. The radial heat from the furnace will strike the back, and inclined, or curved sides, of the fire board and be reflected into the room. It will also heat thesurroundingair. The air in the reservoir or space B between the sheet metal fire board and the ordinary brick casing of the fire place will be heated by radiation and contact with the fire board and brick casing and will pass intothe room through suitable apertures K in the fire board. Should the fire place be too shallow to admit the fire chamber and external cylinder and to form the aforesaid hot air res ervoir B the front of the fire board, which may be of cast or sheet metal, may be brought forward beyond the breast of the chimney and the surrounding space between the edges of the fire board and the chin'mey breast closed by narrow plates, which may also be ornamented and perforated to let the heated air pass through into the room from the hot air chamber B behind the fire board.

the casing of the fire place which makes the latter sufficiently deep to receive the heater.

Semi circular water vessels or evaporat-ors J J for containing water to moisten the atmosphere, when necessary, are placed in semi-circular holders attached to plates hinged to the concave recessed part of the fire board directly over the openings K K that are designed to admit warm air from the space B or reservoir behind the fire board into the apartmentsaid colnblnatlon of holders and plates serving the double purpose of water holders and valves.

The chamber (L) before mentioned for cold air is constructed directly behind the hot air chamber H, and is provided with a valve (M) to shut off the entrance of cold air when required. at is the handle of said valve, by which it is opened and closed.

The chamber or reservoir B for hot air is formed in the brick chimney behind and above the recessed metallic fire board and below a horizontal metallic plate E that closes the fiue; through which plate E the smoke or gas pipe D and hot air pipe Q pass up into or through the flue. The heated air is let into this chamber B through openings made in the segmental top of the fire board, said openings being provided with valves P, 'which may be opened or closed at pleasure. A portion of the cold air from the chamber L also passes in the hot air reservoir B through the small openings N designed to force upward the warm air in the reservoir. 7

The ash box and ventilator are made and arranged in the usual manner; also the damper cl in the smoke pipe.

The pipe Q, for conveying warm air to an upper apartment may be provided with a damper 2? above the plate E, by which to shut off the ascent of the warm air through this pipe when required. At bed time this valve may be opened and the valve (M) in the chamber L closed which will prevent the entrance of cold airthe air to be warmed and conducted upward to the bed chamber being then drawn from the parlor; and should the fire in the chamber of combustion get low, or go out, the temperature of the apartments would not be reduced by the entrance of cold air from the cellar-the aforesaid valve M being closed. It will thus be seen that the use of this valve M in the air chamber L is all important and should be kept closed when the fire is low, and also at bed time, for the reasons above stated, and should be-duly attended to at other times.

Having thus described the construction and use-of my combined recessed fire board and air heater and explained the manner of introducing pure atmospheric air through the lower part of the chimney to the chamber L and sending a portion into the annua furnace in the fire place of a common chimney; nor of bring pure atmospheric air through the hearth to be heated; as these inventions are quite ancient, but

What I do claim as my invention and desire to have secured to me by Letters Patent 1. The combination of the cold air chamber, L and valve M with the hot air annular chamber H and the reservoir or chamber B below the horizontal plate E in the chimney flue and behind the recessed fire board A as described, said chamber L being provided with an opening R to let the cold air into the annular hot air chamber H and small openings N to let a portion of the cold air into the reservoir B and the valve M.

I likewise claim the combination of the hinged water holders J with the recessed fire board, said'holders serving the double purpose of evaporator, stands and valves, as described, for moistening the air and admit ting warm air from the reservoir or space B behind the fire board directly into the parlor. 2. I also claim the arrangement of the valve P in the segmental top of the fire board, as described, for letting the warm air from the recess of the fire board into the reservoir B, to be conveyed thence wherever desired.

In testimony whereof I have hereunto signed my name before twosubscribing witnesses.

L. W. GOSNELL.

WVitnesses WM. P. ELLIo'r I LUND WASHINGTON. 

